Instant purchase welcome! Purchased from the official website in 2020. I'm selling this because I haven't used it, as I was using another sling. Brand new, unopened, and unused. A how-to BOOK will be included. This gradation pattern is no longer sold. Product Specifications↓ ★ Free size (up to approximately 128cm chest) ★ Length approximately 165cm～167cm (excluding rings) ★ 100% organic cotton, so it may shrink slightly depending on how it's washed, but there's no problem with safety. ★ Weight: Approximately 260g ★ Target age: Basic kangaroo carry from newborns to around 3 years old. Depending on other methods, it can be used for elementary school children and older, and for caregiving. Please refer to the how-to video included with the product for details.